Synopsis:	Moderate: httpd security and bug fix update
Issue date:	2009-08-10
CVE Names:	CVE-2009-1891 CVE-2009-2412

CVE-2009-1891 httpd: possible temporary DoS (CPU consumption) in mod_deflate
CVE-2009-2412 apr, apr-util: Integer overflows in memory pool (apr) and 
relocatable memory (apr-util) management

Multiple integer overflow flaws, leading to heap-based buffer overflows,
were found in the way the Apache Portable Runtime (APR) manages memory 
pool and relocatable memory allocations. An attacker could use these 
flaws to issue a specially-crafted request for memory allocation, which 
would lead to a denial of service (application crash) or, potentially, 
execute arbitrary code with the privileges of an application using the 
APR libraries. (CVE-2009-2412)

A denial of service flaw was found in the Apache mod_deflate module. 
This module continued to compress large files until compression was 
complete, even if the network connection that requested the content was 
closed before compression completed. This would cause mod_deflate to 
consume large amounts of CPU if mod_deflate was enabled for a large 
file. (CVE-2009-1891)

This update also fixes the following bug:

* in some cases the Content-Length header was dropped from HEAD 
responses. This resulted in certain sites not working correctly with 
mod_proxy, such as www.windowsupdate.com. (BZ#506016)

After installing the updated packages, the httpd daemon must be 
restarted for the update to take effect.

SL 3.0.x

      SRPMS:
httpd-2.0.46-75.sl3.src.rpm
      i386:
httpd-2.0.46-75.sl3.i386.rpm
httpd-devel-2.0.46-75.sl3.i386.rpm
mod_ssl-2.0.46-75.sl3.i386.rpm
      x86_64:
httpd-2.0.46-75.sl3.x86_64.rpm
httpd-devel-2.0.46-75.sl3.x86_64.rpm
mod_ssl-2.0.46-75.sl3.x86_64.rpm


-Connie Sieh
-Troy Dawson